Complex Query Augmentation for Question Answering over Knowledge Graphs. - Abdelrahman Abdelkawi; Hamid Zafar; Maria Maleshkova; Jens Lehmann 001 (OTM Conferences, 2019)

LC-QuAD 2.0: A Large Dataset for Complex Question Answering over Wikidata and DBpedia. - Mohnish Dubey; Debayan Banerjee; Abdelrahman Abdelkawi; Jens Lehmann 001 (ISWC (2), 2019)